Locked-seam-can-body machine.



PATENTED NOV. 22, 1904.

No. 775,340. I. H. MGBLROY.

LocKED SIAM GAN BODY MACHINE.

APPLICATION FILED JULY 9,1902.

8 SHEETS-SHEET 1.

j IU" N0 MODEL.

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Man. m

8 SHEETS-SHEET 2.

No. 775,340. PATENTED NOV. 22, 1904.

J. H. MGBLROY.

LOGKE-D SEAM CAN BODY MACHINE.

APPLIOATION FILED JULY 9. 1902.

N0 MODEL.

L? INIIIIIIIIIIII IU. ma x 5% Hummm mmm .Y Wl...

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| l i I 'lcvvex No. 775,340. PATENTED NOV. 22, 1904. J. H. MCBLROY.

LOCKED SEAM GAN BODY MACHINE.

APPLICATION FILED JULY 9.1902.

N0 MODEL. 8 SHEETS-s gBET S.

PATENTBD Nov. 22, 1904.

8 SHEETS-SHEET 4.

J. H. MOELROY.

LOCKBD SEAM CAN BDY MACHINE.

APPLICATION FILED JULY 9,1902.

...knwlmf .3, E

N0 MODEL.

No. 775,840. PATENTED NOV. 22, 1904. J. H. MOELROY.

LOGKED SEAM GAN BODY MACHINE.

APPLICATION FILED JULY 9,1902.

v8 SHEETS-SHEET 5.

NSN

N0 MODEL.

mnnuj HW mi@ AIk! La M .Ul will ii www No. 775,340. PATBNTED NOV. 22, 1904.

J. H. MGELROY.

LOGKED SRAM CAN BODY MACHINE.

APPLICATION FILED JULY 9,1902.

NO MODEL. BSHEBTS-SHBBT 6.

PATENTED NOV. 22, 1904.

J. H. McELROY.

LOOKED SRAM GAN BODY MACHINE.

APPLICATION FILED JULY 9,1902.

8 SHEETS-SHEET 7.

N0 MODEL.

PATENTED NOV. 22, 1904.

J. H. MGELROY.

LOCKED SEAM GAN BODY MACHINE.

APPLICATION ILED JULY 9,1902y BSHEETS-SHBBT 8.

N0 MODEL.

M W l Patented November 22, 1904.

PATENT OFFICE.

JOHN HOVARD MCELROY, OF CHICAGO, ILLINOIS.

LOCKED-SEANl-CAN-BODY MACHINE.

SPECIFICATION forming part of Letters Patent No. 775,340, dated November 22, 1904.

Application tiled July 9, 1902. Serial Ilo. 114,896. (No model.)

To @ZZ 7,072,0771, it may concern.:

Be it known that I, JOHN HOWARD MGEL- RoY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Locked-Seam-Can-Body Machines, of which the following is a specification.

My invention is concerned with certain new and useful improvements of the class described, and is mainly concerned with certain new and useful mechanical constructions and combinations of elements the details of which will be fully described in the following specilication and the novel features thereof particularly pointed out in the claims.

To illustrate my invention, I annex hereto eight sheets of drawings, in which the same reference characters are used to designate identical parts in all the figures, of which- Figure 1 is a side elevation of a machine embodying' my improvements. Fig. IlL is a detail of the can-carrying mechanism in section on the line A A of Fig. l. Fig'. 1b is adetail on the line of Fig. If. Fig. 2 is a front elevation of the machine. Fig'. 2 is an enlarg'ed detail showing' the vertical adjustment of the bending-jaws. Fig'. 2h is a horizontal section on the line B B of Fig. 2, Fig'. 3 is a top plan view of the machine with the soldering mechanism omitted and in section on the line C C of Fig'. l. Fig. 4 is an enlarged sectional view through the main portion of the machine on the line D D of Fig. 3. Fig'. 5 is a vertical section through the edge-bending' mechanism on the line E E of Fig. 4, the supporting-block 141 being omitted. Fig'. 6 is a similar view through the blank-folding and seam-bumping' mechanism, with some of the parts in elevation, but substantially in section on the lineFF of Fig'. 4. Figs. 'Tand 8 are views, on a still larger scale, through the edg'e-bending mechanism in section on the line G G of Fig. 5 looking to the left and right, respectively. Fig'. 9 is a central longitudinal vertical section through the horn and its associated parts. Fig'. l0 is a perspective view of the horn and the folding-wings, showing' how the gages on the wing's cooperate with the blank to compel its edges to meet with absolute accuracy. Fig. 1l is a vertical section on the line I I of Fig. l. Fig. 121s adetail of a portion of the mechanism shown in Fig. but with the bending-jaws moved vertically as they appear at the conclusion of the first operation in forming' the hooks. Fig. 13 is a similar View, but showing' the bendingjaws moved horizontally and as they appear at the close of the second operation in forming the hooks. Fig. I4, Sheet 3, is an end elevation of the horn, jaws, and bumper, showing the position of the parts after the blank is folded about the horn, but before the hooks are joined. Fig. 15 is a similar View, but with the horn expanded, as occurs in engaging' the hooks, and with the bumper down to press the seam. Fig. I6, Sheet 4, is a detail in horizontal section on the line J J of Fig'. 14, showing the operation of the mechanism for expanding' the horn. Fig. 17 is a similar view in section on `the line K K of Fig'. 15. Fig. 18, Sheet 5, is a side elevation of one of the wing-folding cams and its operating-link. Fig'. 19 is a similar view of the expander-cam; and Fig'. 20, Sheet 3, is a diagram illustrating the relative movement of the various mechanisms.

To form the necessary framework to support the various parts of the machine, I preferably employ at each side the castings Q1, which will be seen to consist of the shorter front standard 22 and the longer main or rear standard 23, which are connected by the wide cross-piece 24 at the top of the standard 22 and the smaller cross-piece 25 near the bottom. These castings 21 are connected by the transverse casting 9.6, extending' between them and occupying' the Vertical horizontal space represented by the cross-piece Q4, the general shape of this casting being' of an inverted-U shape, with the exceptions that will appeal' in connection with the description of the associated parts. The standards 23 are connected by the transverse casting' 27', which is preferably U-shaped in general cross-section, as seen in Fig'. 4. The standards QQ are also connected in the plane of the cross-pieces 25 bythe transverse casting 28. To the rear of the casting 26 and to another transverse casting (not shown) between the standards 9.3

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in the plane of the casting 28 I secure the two vided preferably on their alternate links with y the carryingspurs 34, which engage the blanks and carry them forward as the chain is advanced. The chains are of a sprocket construction and are carried by the wheels 35 at the front of the machine and wheels 36 at the rear of the machine. The wheels 35 are keyed or otherwise rigidly secured to the shaft 37, mounted to rotate in the bearings 38,

formed on the sleeves 39, adjustably mounted on the pins 40, secured in correspondinglyshaped recesses 41, formed in the front of the casting 26, as best seen in Fig. 4. By means of set-screws 42, screwed through the ends of the sleeves 39 and taking against the ends of the pins 40, and the lock-nuts 43 cooperating therewith I am enabled to adjust the position of the wheels 35 and take up any slack in the chains 33. The sleeves 39 are preferably provided with the standards 44, connected at their upper ends by the plate 45, upon which the blanks are piled, and a curved shield 46, covering the wheels and chains, may be secured to the under side of the plate 45, as clearly shown in Fig'. 1. The rear wheels 36 are, as best seen in Fig. 11, splined to a shaft 47, which rotates in suitable bearings 48, bolted to the rear sides of the standards 29. To advance the wheels intermittently, a ratchetwheel 49 is rigidly secured to the wheels 36, as by the pin or screw 50, and mounted to swing on the shaft 47 is an arm 51, which has pivoted thereon the pawl 52, engaging the ratchet 49. This pawl 52 may beheld in engagement with the ratchet by spring-pressure; but I.

preferably overweight the pawl, so that it will be held in engagement therewith by gravity. The arm 51 has pivotally secured thereto the link 53, which preferably has its other end slotted, as shown at 54, and embracing the shaft 55, which is journaled in suitable bearings formed in the standards 23, and may be described as the main shaft of the machine. Secured upon the shaft 55 in the proper plane is the face-cam 56, with whose groove 57 the engaging member, such as the antifriction-roller 58, mounted on the end of thelink 53, coperates. The shaft 55 has the gear-wheel 59 secured on one end thereof, and meshing with the gear-pinion 60, rigidly secured tothe preferably heavy pulley-wheel 61, which is mounted to rotate on a stub-shaft62,secu red in the elongated bearings 63, formed in the standard 23 on that side of the machine, as best shown in Fig. 6. As power is applied to the drivingpulley 61 it will be apparent that the shaft 55 will be continuously rotated at the proper rate of'speed and by means of the mechanism heretofore described will, during preferably about one-third of each rotation, advance the chains 33 through a distance amounting to the length of two links, so that the blanks will be presented at regular intervals to the operating mechanism to be described.

As is well known, to form the ordinary locked seam with this class of machine it is necessary to form a downwardly and inwardly pointing hook on one end of the blank and an upwardly and inwardly pointing hook on the other end of the blank, and before describing the details of the mechanism for forming these hooks I will brieiy describe, by reference to Figs. 5, 12, and 13, the fundamental steps of the operation, so as to thereby anticipate the necessary movements of the mechanism employed in carrying out this operation.

As the edge-bending mechanism is composed of two substantially symmetrical right and left parts, I will apply the same referencenumeral to the same part in the right and left hand side, unless they should be different other than as rights and lefts, in which case I shall distinguish the right-handones by adding the reference-letter a to the numeral designating the corresponding left-hand ones.

The blank 64 is fed forward by the chain and properly guided by mechanism to be subsequently described until it rests in the position shown in Fig. 5upon the upper surfaces of the stationary supporting and clamping jawsv 65 and 65", carried upon the standards 66 and 66a. At the time that the blanks are fed into position the movable clamping-jaws 67 and 67 are elevated to the position shown in dotted lines in Fig. 5 to permit the blank to be fed freely between the jaws 65 and 67. At the time the blanks are fed into position the bending-jaws 68 and 68 are respectively located at such a distance above and below the ends of the blank that they do not interfere with its passage; but after the movable clamping-jaws 67 and 67 a are brought down by the mechanism employed for that purpose the bending-jaw 68 is lowered vertically and the bending-jaw 68a is raised vertically to the positions shown in Fig. 12 and in their movement bend the ends of the sheet about the coperating bending edges 69 and 69, formed on the stationary clamping-jaw 65-and on the movable clamping-jaw 67, respectively, as clearly seen in the figures referred to. Immediately afterward the bending-jaws 68 and 68'L are moved inward to the right and left, respectively, and their beveled surfaces coperating with the beveled surfaces of the edges 69 and 69 serve to bend the hooks into the final shape desired.

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(Shownin Fig'. 13.) The bending-jaws then re- I treat and resume their normal position, and the clam ping-jaws 67 and 67n are raised to release the blank 61, which 1s then fed forward tothe ism, where it is operated on while the succeeding blank is having' its edg'es bent. The mechanism for giving these necessary movements to the clam ping-jaws and bending-jaws is best illustrated in Figs. 5 to 8, where it will be seen that I form on the upper surface of each end of the casting Q6 the ways 70 and 71, which conveniently have the horizontal bearing-surface and the inclined overhanging surface to hold the cooperating slides in place. The overhanging rib TQ for the bearing-surface 71 is conveniently made integrally therewith; but 1 preferably make the corresponding rib 7 3 for the way 70 separate and adjustable thereon by means of the set-screws '7-1, passed through the rib 75, formed on the top of the front edge of the casting Q6 and serving' to take up any wear or make any necessary adjustment in the ways, the ribs 73 being' secured in any desired position of adjustment by the set-screws 7 6 passing' through short slots therein and into the horizontal web 77 ofthe casting 26. Mounted to slide in the ways thus formed are the plates 78, which are symmetrical, but are rights and lef'ts, as is necessitated vby the fact that the parts that they carry are oppositely disposed. These plates have the standards 66 and 66, previously referred to, on their inner ends preferably cast integrally therewith and have preferably integrally formed on their rear ends a pair of standards 79, which form yokes in the upper ends of which are pivoted the swingingclamping-jaw-supporting' levers 80, the bearings 81, formed on the upper ends of these standards, being' separated by a considerable distance and the breadth of the levers 80 being' correspondingly great in order to give a long bearing-surface to the levers and insure the clamping-jaws pressing firmly on the cooperating stationary jaws 65 and 65u throughout their length. Bolted to the under sides of the plates 78 beneath the standards 79 are the brackets 82. (Best shown in Fig. 8,where the bracket will be seen to have the rearwardly-extending arm 83, terminating in the short horizontal bearing 81, in which is mounted to rotate the outer end of one of the sleeves 85, each of these sleeves being' splined upon the shaft 55, so as to rotate therewith, but so as to be capable of longitudinal movement thereon.) The inner ends of these sleeves are supported by the brackets 86, somewhat similar to the brackets 82, but bolted to the inner ends of the plates '78 beneath the standards 66 and 66". The brackets 86 have the bearing's 87, similar to the bearings 81. The brackets 82 are provided with the downwardly and forwardly projecting arms 88, which have the apertures 89 formed in their ends in the plane of the bearings 81 to receive the rods 90, the other ends of which are supported in similar apertures in the similar arms 91, projecting forwardly aud downwardly from the folding', hook-engaging', and bumping' mechancastings 86. The sleeves 85 each have three cams rigidly secured thereon, the centralones of which. 92, control the movements of the clamping-jaw-carrying levers 80. To effect this result, levers 98 are fulcrumed on the rods 90 and have the antifriction-rollers 9% on their other ends cooperating with the surfaces of the cams 92. Pivoted to these levers beneath the center of the levers 80 are the links 95, which extend up through suitable apertures in the plates 78 and are pivoted at their upper ends in suitable ears formed on the under surface of the levers 80. From a consideration of this arrangemento'f' mechanism and the shape of the cams it will be seen that during' a considerable portion of the rotation of' the shaft the levers 80 will be held up, so as to keep the jaws 67 and 67u out of engagement with the cooperating jaws and 65. Yinterposed between the under surface of the levers 80 and the upper surface of the plates 78 are the bending-jaw-carrying levers 97, to be described. During the remaining' interval, when the aforesaid bending-jaws are acting', the high portion ofthe cams will carry the jaws 67 and 67 down to and hold them in engagement with the stationary jaws to securely clamp the blanks in place while they are being' operated on. As a preferred method of adjusting the position of the jaws 67 and 67 l provide the two pairs of ears 98 on the ends of' the levers 80, respectively, and through these I screw the set-screws 99, which cooperate with the upper edges of the jaws to limit their movement, and the jaws are firmly clamped in their desired position of adjustment by the setscrews 100 passing through the elongated vertical slots therein and screwed into the downwardly-directed ends 101 ofl the levers 80, respectively.

The levers 97 are mounted ou a movable pivot, preferably formed by the antifrictionrollers 102, (best shown in Fig. 8,) journaled on the ends thereof and rolling in the hori- Zontal ways 103, formed on the inner edges at aboutthe centerof thestandards79. This arrangement, as will be readily seen, permits the levers 97 to swing about the rollers as a fulcrum to carry the jaws 68 down and the jaws 68 up, while also permitting them to move inwardly for the purpose described. To effect the downward movement of the lever 97 to carry the bending-jaw 68 down, a lever 10st, similar to thelever 93, is mounted on the lefthand rod 90 and has its antifrictionroller 105 cooperating with the cam 106 on the left-hand sleeve 85, as clearly shown in Fig. 6. This lever 101 is connected by the link 107 with the ears 108, projecting' downward from the under side of the forward end of the lever 97. The lever 101LL for the other IOO IOS

side of the machine is similar, except that it is reversed, and the antifriction-roller 1051L rests on the top of the cam 106, as will be apparent is necessary to raise the right-hand lever 97 instead of lowering it, as is the left-hand lever 97. It will be apparent that the righthand spring 96 serves to not only hold the lever 80 normally up, but also to hold thelever 97 normally down. The connections between the links 107 and the ears 108 are preferably of a construction best shown in Figs. 2, 2, 2b, and 5, where it will be seen that I employ a disk 109, having the equidistant perforations 110 therein near its periphery and having the two cylindrical bearing portions 111 and 112, which are mounted to rotate in correspondingly-sized openings in the ears 108. These bearing portions 111 and 112 are connected by the reduced eccentrically located portion 113, upon which the upper end of the link 107 is pivoted. A pin or screw 114 passes through whatever one of the apertures 110 may be in position for the adjustment desired and into the recess 115 in the ear 108 to hold the parts in the desired position of adjustment. W'hen any change is to be made, the pin 114 is withdrawn and the disk 109 is rotated until the desired adjustment is attained, when the pin is inserted and operations can be resumed. This form of adjustment is particularly adapted for the general arrangement of parts employed on account of the difliculty there would be of getting at the ordinary turnbuckle adjustment if that were employed. To hold the left-hand lever 97 normally in its uppermost position, a strong helically-coiled expanding-spring 116 is located between the under side thereof and the top of the plate 78, the spring being sufliciently strong to resist any tendency that the spring 96 mighthave to carry the lever down prematurely.

To provide for the endwise movements of the levers 97, I provide the face-cams 117, secured on the outer ends of the sleeves 85, and coperating with the antifriction-rollers 118 on the lower end of the arms 119, which are rigidly secured to the rock-shafts 120, mounted in the bearings 121 and 122, formed on the inner faces of the brackets 82. Secured to the inner end of the rock-shaft 120 in the plane of the center line of the levers 97 are the arms 123, the upper ends of which are provided with bearing-heads 124, which take into recesses of the proper size in the levers 97 so that the actiony of the cams 117 will be to throw the levers and the jaws 68 and 68n inward after they have been first moved vertically. To return the jaws to their normal position, I employ the helically-coiled contractile springs 125, connected at one end to the sides of the inner ends of the levers 97 and at their other ends to the standards 79. To limit the amount of horizontal outward movement of these levers 97, I employ the set-screws 126, screwed through the plates 127 connecting the outer edges of the standards 79 and contacting with the outer ends of the levers 97 in their outermost positions. r1`he jaws 68 and 68 are secured on suitable flat bearing-surfaces formed on the upper surfaces of the inner ends of the levers 97 and are adjusted by means of the set-screws 128, screwed through the lugs 129, formed on the upper surface of the levers 97 and abutting against the upturned ends of the jaws, which have slightly-elongated slots therein (not shown) through which pass the set-screws 129, which are screwed into the ends of the levers 97 to secure the jaws in any desired position of adjustment.

To guide the blanks 64 with absolute accuracy to this bending apparatus, as will be apparent is absolutely necessary, I secure upon the tops of the front ends of the standards 66 the blank-guides 130, which consist of the angle-bars projecting forward in front of the jaws and having the vertical sides projecting upward and the horizontal sides projecting inward, the upper surfaces of which are flush with and form a continuation of the clamping-surfaces of the jaws and 65a. The edge guides formed by the inner sides of the vertical portions of these bars 130 are continued alongside the jaws and as far past them as possible without interfering with the foldingwing-operating levers (to be described) by the extensions 131 and 131, which are secured to the front of the left-hand lever 97 beneath the jaw 68 and to the top of the jaw 68, respectively, as seen in Fig. 5, so that the continuity of the vertical guide-surface is unbroken until the blanks are carried beneath the bending-jaws.

The machine is designed to be used for different-sized cans, and for this purpose it will be apparent that the bending mechanism herein shown must be arranged so that the jaws can be brought nearer to or farther from each other, as may be necessary for the different lengths of blanks upon which the machine will have to operate. For this purpose I provide the hand-wheel 132 on the outside of the machine, which is secured to and rotates the adjusting screw-rod 133, the outer portion of which is of a certain diameter, while the inner portion 134 is of a reduced diameter. The inner end of the larger portion and the outer end of the reduced portion are oppositely screw-threaded, but with threads of the same number to the inch, these screw-threaded portions coperating with the nuts 135, secured to the brackets 86. If the rod 133 is held from longitudinal movement, it will be apparent that as it is rotated the jaws will both move at the same rate toward or from each other, as the case may be, thus uniformly adjusting the bending mechanism, as the entire mechanism is placed on the slides 78, which are moved by the screw, as

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seen, and slide back and forth in the recesses constituting' the greater portion of the upper side of the casting 26.

As the horn and allied mechanism to be described are stationary, it becomes of vital importance to be able to adjust the bending mechanism thereto in order that the blank" may be accurately delivered to the horn, and for this purpose I confine the rod 133 by means of the collar 136 in the exteriorlyscrew-threaded bearing-block 137, which is screwed into a suitable nut 138, formed in the cross-piece 24 of the casting and secured in any desired position of adjustment b v the nut 139. By this mechanism it will be apparent that I can instantly and without any separate movements of the jaws adjust the center of the blank exactly to the center line of the horn. It will be apparent that the reduction of a portion of the rod 133 is made to facilitate the insertion thereof in the machine.

To hold the upper half of the chain hori- Zontal throughout the operative portion, I provide the angleiron supports 140, arranged with the vertical portions pointing upward and the horizontal portions pointing inward, so as to support the outer edg'es and bottom of the chain. These supports are carried upon the I-shaped block 141, bolted to the top of the middle portion 142 of the casting 26, which is not cut away at this point, as the plates 78 do not reach this far inward, and to strengthen the casting' at this portion I provide the two vertical webs 143. (Best shown in Fig'. 4.) The rear ends of these supports 14() are also secured upon the top of the Vertical tubular bearing' 144, as best seen in Fig. 6. These supports hold the chain perfectly horizontal as it passes beneath the bending' mechanism and the horn. To hold the sheets flat and prevent their buckling', I provide the horizontal plates 145, with the under surfaces of their outer ends beveled slightly and extending' over the longitudinal distance covered by the'bending apparatus and supported by the vertical arms 146, bolted to the casting 147, upon which the horn is supported. This hornsupporting casting` 147 is a heavy substantial casting of the shape shown and strongly bolted to the cross-piece casting' 27.

Before describing the details of construction of the blank folding, hooking, and bumping mechanism I desire to describe the mode of operation of the parts thereof in order that the construction and operation of the mechanism for moving' the parts will be more readily understood, and for this purpose reference is made to Figs. 6, 14, and 15. The blank after having' the hooks formed on its edges is fed forward by the chains beneath the horn 148, which projects rearwardly from the bottom of the aforesaid casting 147 and consists of the stationary portion, which is preferably formed integrally with said casting' and has its outer surface curved on the arc of a circle of the interior diameter of the can to be formed and extends over about two hundred degrees. A wing 149, having' its outer surface curved on the same circle, is pivotally mounted thereon by the elongated bearing' 150. The movable portion is also connected with the fixed portion by the expanding-slide 151, to be more fully described, which slides in the way 152, formed in the center of the side of the fixed portion of the horn. After the blank is in position beneath the horn a clamp 153, having its upper surface curved on the arc of the same circle as the horn and extending the length of the horn, is brought up against the under surface thereof and serves to clamp the blank firmly in position, preferably, however, with a yielding' pressure. The outer ends of the blank are now over the folding' wings 154, which are now in the dotted-line position shown in Fig'. 6. These wing's are immediately swung' into engagement with the horn, folding the blank into a circle about the horn, as shown in Fig'. 14. It may be stated that the wing' on the left-hand side of the machine, standing' at the front, rises somewhat in advance of the other, so that the lefthand hook pointing upward will be beneath the rig'ht -hand hook pointing downward, as shown in said figure. r1`he expanding-slide 151 is in such position that the horn is at its smallest diameter and the hooks are not engaged. The expanderslide 151 is then moved, carrying the wing' 149 to the position shown in Fig'. 15 and drawing' the left-hand hook into engagement with the rig'ht-hand hook, which remains stationary, thus insuring' the locking of the seam. At the same time the bumper 155 is descending and holds the righthand hook down, so that it cannot help being engaged by the left-hand hook, and the instant the engagement is effected the continued descent of the bumper presses the seam firmly into the channel 156, formed in the upper surface of the seaming'bar 157, set into the top of the stationary portion of the horn. The bumper 155 now rises, the expanding-slide 151 retreats and draws the wing' 149 back to the contracted position of the horn, the folding'- wings 154 are carried back to their lowermost position, the can is free to be carried off from the horn at the next movement of thc chain, whose inwardly-directed lug's 34 take into the recesses 158, extending the length of' thehorn, and the can is easily removed, as its interior area is represented by the expanded horn, while the horn is now contracted, leaving' the can loose on the horn.

The clamp 153, as best seen in Fig. 9, is preferably pivotally mounted by means of an elongated bearing-lug' 159 between a pair of ears formed in the top of the sliding' rod 160, which is mounted to slide in a sleeve 161, which in turn slides in the vertical bearing 144. The rod 16() and sleeve 161 are both held from possible rotation bythe spline-strip IOO IIO

vis being fed into position.

162, secured in apertures in the sleeve 144 and lblank while it is being operated on and to permit the clamp to descend while the formed can-body is being removed and the fresh blank In order that the clamp 153 may yield and hold the blank yieldingly in spite of the positive movement given by the cam, as well as to furnish a yielding resistance to the blank as it is being fed beneath the horn, and thereby prevent any possible overthrow, I reduce the lower portion of the rod 161, as seen at 167, and pass it through an aperture formed in the bottom of the sleeve 161 and interpose a helically-coiled expandingspring 168 between the shoulder formed by the reduced portion and the bottom of the sleeve. A set-nut 169 and a cooperating jamnut 170 on the lower screw-threaded end of the reduced portion 167 enable me to adjust the position ofthe clamp 153 and vary the amount of tension it exerts upon the horn, as

V well as the resistance to the feeding of the blank.

I may employ in connection with the edgebending mechanism a stop-gage to limit the forward movement of the blanks to position beneath the clampingjaws and horn and prevent any possible overthrow, but I do not lind it to be essential. rIhis mechanism is best shown in Figs. 4, 5, and 9, where it will beA seen that I pivot between the ribs 143 upon the .bearing-rod 171 a lever 172, which has the offset 173 thereon, which brings the antifriction-roller 174 on its power end in the plane of the cam 175, rigidly secured on the shaft 55 and conveniently mounted on the sleeve constituting the bearing-support of the cam 166. Screwed into an enlargement 176 of the lever 172 is a set-screw 177, provided with a jamnut 178. In the hollowed upper end of the set-screw 177 rests the reduced end of the rod 179, which is mounted to slide in the vertical sleeve 1 80, secured in the bearing-aperture 181, formed in the portion 142 of the casting 26. On the upper end of the rod 179 is secured the U-shaped cross-piece 181, which has the helically-coiled contractile spring 182 secured to the under surface thereof and to the top of the portion 142 of the casting 26, so as to tend to hold the gage in its lowermost position. y Secured on the inner faces of the vertical outer edges of the cross-piece 181 in any desired manner are the elongated gage-bars 183, having tliefront stop-'fingers183 and the rear stop-fingers 183b, which are thrown upward by the c am 175 just previous to the completion of the feeding movement of the chain, so as to positively stop the blanks beneath the bending-jaws and horn and prevent any possible overthrow, while the spring 182 serves to draw the gage-fingers down some time previous to the beginning of the feed movement of the chain, so as to prevent the possibility of the fingers 183a being in the way to interfere with the forward movement of the blank which has just had its edges bent. The gagebars 183 extend along just outside of and in contact with the vertical portions of the chain guide-bars 140, which prevent any possibility of their being displaced and spoiling the accuracy of their guiding action.

The folding-wings 154 are rigidly secured to and preferably formed integral with the substantially right-angular arms 184, which are pivoted by their inner ends upon the bearing-pins 185, screwed into the top of the bearing 144, as best shown in Fig. 9. Pivotally mounted in the recesses 186, formed in the semicylindrical rib 187, formed on the bottom of the wing and connecting the upper ends of the arms 184, is the inner end of the lever-arm 188, the other end of which is pivoted to the swinging fulcrum-link 189, which in turn is pivoted to the ears 190, projecting upward from the rear of the casting 26, as best seen in Fig. 6. These links 188 are'connected by the links 191, provided with the turnbuckle adjustments 192, to the wing-operating facecams 193, secured upon the horizontal shaft 194, journaled in the bearings 196, formed on the top of the standards 23, and in the auxiliary bearing 197, formed on the top of the standard 198, projecting from the transverse casting 27. The face of one of the cams 193 is shown in Fig. 18, and it will be seen that the upper end v of the link 191 is provided with the elongated slot 199, embracing the shaft 194 and provided with the bearing-pin or antifriction-roller 200, projecting into the groove 201 of the cam. These cams are set one slightly in advance of the other, and it will be apparent'from a consideration of Fig. 6 that as the shaft 194 is rotated in unison with the shaft 55 by reason of the transverse shaft 202, mounted in the bearings 203, projecting from the sides of the standards 23 and having the bevel-pinion 204 IOO IIO

on its ends meshing with the bevel-pinions 205 on the shaft 194 and 206 on the shaft 55, the wings will be reciprocated in the proper manner and at the proper time to fold the blank about the horn. This particular mountcam 20T, secured near the center of the shaft 194 and having' the cam-groove 203 therein, (shown in Fig. 19,) in which extends the pin or antifriction-roller 209, secured on the upper end of the arm 210, the lower end of which is rigidly secured to the rock-shaft 211, mounted to rock in the bearings 212, formed on the top of the horn-supporting bracket 147. Between the bearings 212 is the upper end of the arm 213 of the expander-operating lever, which is rigidly secured to the rock-shaft 211, so that the movement of the cam is t-ransfcrred to the adjustable collar 214, screwed on the rounded and reduced end 215 of the expander-slide 151, which projects through an aperture in the bottom of the bracket 14T by means of the ears 216, eng'aging the annular groove in the collar and pivoted in suitable bearings formed in the ends of the yoke 21T, forming' the lower end of the arm 213. A jam-nut 218, cooperating with the collar 21-1, serves to secure it in any desired position of adjustment as may be necessary to regulate the amount of expansion given to the horn. The slide 151, as seen in Figs. 16 and 1T, is provided with the pair of channels therein having' the straight portions 219 and the inclined portions 220, into which lit the pins 221` projecting downward from the ledge 222, projecting inward from the movable wing 149 into the channel 223, formed on the face of the rigid portion 1&8 above the slide 151. From an examination of Figs. 15 and 16 it will be apparent that by adjusting' the position of the slide 151 by the mechanism previously described the amount of throw given to the movable wing can be regulated as may be desired.

To insure the blank 64 being' folded squarely about the horn with its ends meeting' exactly, I employ the mechanism (best shown in Fig. 10) which consists of the inwardly-pointing' adjusting-stops 224, fastened onto the tips of the rear and upper ends of the wings and having' the beveled inner edges These gages project inside of the periphery of the wings, and the stationary portion of the horn is cut away at 226 and the movable wing at 22T to receive these gage-fingers when the wings are folded. As will be seen from an examination of Fig'. 10, the sheet asit is fed forward reaches substantially to the inclined portion of the gag'es, but does not contact with them, as they are slightly below the plane of the blank, and as the wings swing' up toward the end of their movement the gages catch the edges of the tin and bring' them into alinement if they happen to be out, which is forced by the other edges of the blank taking against the portion of the support for the horn, as at 228, thus forming' two positive surfaces from which the blank cannot escape and necessitating' their meeting squarely at the time the edges are brought together and hooked. The yielding clamp 153 permits any movement of the blank that may be necessary to bring the blank into perfect alinement.

lhe bumper 155 and its operating connections, as best seen in Figs. 2, 4f, 6, and 9, consists of a bar having the head 229 fitting into a socket 230, formed in the bottom of a sleeve 231, splined to and mounted to slide in the bearing' 232, formed in the enlargement 233 of the casting 2T. The sleeve 231 is hollow and has pivoted in the lower end thereof on the bolt 234 the link 235, the upper end of which is secured to the eccentric-strap 236, cooperating' with an eccentric (not shown) on the shaft 191. A turnbuckle adjustment 23T, with the customary set-nuts, is employed in connection with this link to raise or lower the position of the bumper, as may be desired to adjust it to the horn and vary the amount of pressure put upon the seam.

The lixed portion of the horn 150 is preferably provided with the extension 23S, to which is secured the bar 239, forming the basis of the soldering-horn. To lill out the horn and keep the can in shape as it passes over the same, l bolt to the bar 23) the four strips of angle-iron 210, as shown in cross-section in Figs. 11 and 1. Between the horizontal flanges of the angle-irons is formed a pathway for the fingers 211 of the can-carrying chains 212, which are carried upon the sprocketwheels 213 at their inner ends and 2&4: at their outer ends. The sprocket-wheels 2-13 are secured upon the upper ends of the vertical shafts 245, (best shown in Fig'. 11,) which are journaled in the bearings 216, formed in the castings 24T, which are bolted to the anglebars 32. The lower ends of these shafts have secured thereon the bevel gear-pinions 248, which mesh with the bevel gear-wheels 249, secured upon the shaft 1T, so that every time the blank-carrying mechanism is operated to bring' forward afresh blank the can-carrying' mechanism is simultaneously operated to carry away the completed can delivered to it by the blank-carrying mechanism. The sprocketwheels 211 are secured upon the Lipper ends of the short shafts 250, which are journaled in bearings 251, mounted to slide in the ways 252, secured on the inner surfaces of the channel-beams To keep the chains taut, l preferably interpose the lnlically-eoiled expanding-springs (shown in dotted lines in Fig'. 1) between the ends 25T of the bearings 251 and the abutments 256, formed on the ends of the set-screws 255, passed through the threaded lugs 25a, secured on the inside of the channel-bars 32. By means of these set-screws 255 I can vary the amount of tension given to the chain.

To accurately position the blank-feeding' chains, I preferably secure upon the shaft 47, conveniently upon the hub of one of the bevelgears 219, a disk 256, which has eight equidistant conical depression 251, formed near the periphery thereof and in position to co- IOO IIO

operate with a spring-pressed plunger 258, mounted in a suitable housing in the standard 29.

To support the outer end of the solderinghorn 239, I locate beneath it a wheel 259, upon which the horn rests and which is journaled in suitable bearings 260` secured to the under side of the channel-bars 32.

Any desired form of soldering mechanism may be used in connection with my apparatus, and I have shown a conventional form consisting of the iiuX-cup 261, suitably supported above the iiuxing-roller 262, supported by the bracket 263, bolted to the rear of the transverse casting 27. supported from the channel-bars 32, may be employed, and any desired form of solder feeding and cutting mechanism 265 may be employed and conveniently operated by a sprocket-chain running to a sprocket-wheel 266, secured upon the shaft 267, mounted in the bearings 268, secured to any suitable portion of the machine and terminating in the gear-pinion 269, engaging the pinion 59, or the power might be taken directly from the Shaft 194.

The operation of the complete device will be readily understood from the foregoing description. To facilitate the comprehension of the relative movements of the parts and their timing, I show in Fig.v 2O a table in which the relative time and duration of all the movements of the parts are shown graphically. From this it will be apparent that during the first one hundred and twenty degrees of rotation of the two shafts the chain feed is moving forward and advancing a fresh blank, the blank with its edges bent, and the hooked can-body to their new positions. From the period of eighty degrees up to one hundred degrees the gage is being raised ready to meet the blank and the blank with its edges bent at the end of their movements-z'. e., at one hundred and twenty degrees. At one hundred and twenty degrees, with the blanks in their new positions, five degrees is given to allow the parts to settle, and simultaneously from one hundred and twenty-five degrees to one hundred and forty-ve degrees the blankclamps come down to secure the blanks prior to bending their edges. At the same time the lower compressor comes up to clamp the blank just fed beneath the horn firmly against the bottom thereof. From one hundred and forty-five degrees to one hundred and seventy degrees the vertical bending-jaws are moving down or up, as the case may be, and from one hundred and seventy degrees to one hundred and ninety-five degrees they are moving inward to complete the hooks. At the same time that these movements have been completed on the new blank the one beneath the horn has been folded by reason of the left wing rising from one hundred and forty degrees to two hundred and ten degrees and the Soldering-pots 264,

right wing rising from one hundred and fiftyive degrees to two hundred and twenty-five degrees. From one hundred and ninety-ve degrees to two hundred and twenty-five degrees, after the blanks have been operated on, the gage descends, and from two hundred degrees to two hundred and twenty-five degrees the horizontal bending-jaws move back, and from two hundred and twenty-five degrees to two hundred and fifty degrees they move up or down, as the case may be, to their normal position. From two hundred and fifty degrees to two hundred and seventy degrees the blank clamps rise, and for the remaining ninety degrees of movement none of the edgebending parts are in operation; but they are all ready for the new blank at the beginning of a new rotation. At two hundred and twentyfive degrees the blank had been folded about the horn by the wings, and from two hundred and twenty-fivedegrees to two hundred and forty-iive degrees the expander operates to hook the seam,and at one hundred and ninety-live degrees the bumper, which has been moving down since one hundred and fifteen degrees, completes its downward movement and bumps the seam, firmly securing it together. From two hundred and ninety-five degrees to three hundred and fifty degrees the left wing moves down and similarly the right wing' from three hundred and ten degrees to three hundred sixty five degrees. The expander retracts from three hundred and thirty-five degrees to three hundred and fifty-five degrees before the feed takes the locked seam-body off of the horn in order to permit it to be withdrawn easily. From three hundred and thirty-five degrees to three hundred and fifty degrees the lower compressor is also dropped to release the can from the horn and permit its easy withdrawal.

While I have shown my improvements as embodied in a locked-seam machine, it will be understood that some of them might be employed in a lapped-seam machine and that I do not desire to be limited to their employment in a locked-seam machine except in com- IOO IIO

binations pertaining exclusively to that class of machines.

While I have shown my invention as embodied in the forms which I at present consider best adapted to carry out its purposes, it will be understood that it is capable of modifications and that I do not desire to be limited in the interpretation of the following claims except as may be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a device of the class described, the combination with the main shaft, a single blankfeeding mechanism to and from the edge-bending mechanism and blank-folding mechanism, edge-bending mechanism, and operating connections between said mechanisms and shaft;

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ing mechanism and blank-folding mechanism, 1 edge-bending mechanism, l ody-feeding mechanism, and operatingconnections between all of said mechanisms and said shaft; of the auxiliary shaft, blank-folding mechanism, hookengaging mechanism, seam-bumping mechany ism, and operating connections between said blank-folding,hook-engagingandseam-bumping mechanisms and said auxiliary shaft; and i driving connections between said shafts.

ln a device of the class described, the combination with the main shaft, blank-feeding' mechanism, edge-bending mechanism, stopgage mechanism, and operating connections between all of said mechanisms and said shaft; of the auxiliaryY shaft, blank-folding mechanisms, hook-engaging mechanism, seam-bumping mechanism, and operating connections between said blank-folding, hook-engaging and seam-bumping mechanisms and said auxiliary shaft; and driving connections between said shafts.

i. In a device of the class described, the combination with the main shaft, blank-feeding mechanism, edge-bending mechanism, bodyfeeding mechanism,stop-gage mechanism, and operating connections between all of said mechanisms and said shaft; of the auxiliaryv shaft, blank-folding mechanism, hook-engaging mechanism, seam-bumping mechanism, and operating connections between said blankfolding, hook-engaging and seam-bumping mechanisms and said auxiliary shaft; and driving connections between said shafts.

5. in a device of the class described, the combination with the main shaft, the auxiliary shaft, and di'iving connections between said shafts; of the blank-feeding' mechanism, edgebending mechanism, blank-foldingl mechanism, positively-actuated hook-engaging mechanism, and seam-bumping mechanism; and driving connections between said shafts and mechanisms, the blank-feeding and edge-bending mechanisms being operated directly by the main shaft, and the blank-folding and hook-engaging mechanisms being' operated directly by the auxiliary shaft.

6. In a device of the class described, the combination with the main shaft, the auxiliary shaft, and drivingl connections between said shafts; of a single blank-feeding mechanism i to and from the edge-bending mechanism and blank folding mechanism, edge bending' mechanism, blank-folding mechanism, and seam-bumping mechanism; and driif'ing connections between said shafts and mechanisms,

isms being operated directly by the main shaft, and the blank-folding and seam-biiinping mechanisms being operated, directly by'the auxiliary shaft.

T. lu a deviceof the class described, the combination with the main shaft, the auxiliary shaft, and driving` connections between said shafts; of the blank-feeding mechanism, edgebending mechanism, blank-folding mechanism, positively-actuated hook-engaging mechanism, and seam-bumping mechanism; and driving connections between said shafts and mechanisms, the blank-feeding and edge-bending mechanisms being` operated directly by the main shaft, and the hook-engaging and seam-bumping mechanisms being operated directly by the auxiliary shaft.

8. In a device of the class described, the combination with the main shaft, the auxiliary shaft, and driving connections between said shafts; of the blank-feeding mechanism, the edge-bending mechanism, the blank-folding' mechanism, the hook-engaging mechanism, the seam-bumping inechanism, and thc bodyfeeding mechanism; and driving connections between said shafts and mechanisms, the

,blank-feeding, vedge-bending, and body-feeding mechanisms all being opei'ated directly by the main shaft, and the blank-folding and hook-engagi ng mechanisms being operated directly by the auxiliary shaft.

9. Inadeviceofthe classdesci'ibed, thecombination with the main shaft, the auxiliary shaft, and driving connections between said shafts; of the blank-feeding mechanism, the edge-bending mechanism, the blank-folding mechanism, the hook-engaging mechanism, the seam-bumping mechanism, and the stopgage mechanism; and driving connections between said shafts and mechanisms, the blankfeeding', edge-bending, and stop-gage mechanisms all being' operated directly by the main shaft, and the blank-folding and hook-engag- IOO TIO

ing mechanisms beingopeiated directly by the auxiliary shaft.

10. 1n a device of the class described, the combination with the main shaft, the auxiliary shaft, and driving connections between said shafts; of the blank-feeding mechanism, the edge-bending mechanism, the blank-folding mechanism, the hook-engaging mechanism, the seam-bumping mechanism, and the bodyfeeding mechanism; and driving connections between said shafts and mechanisms, the blank-feeding', edge-bending and body-feeding mechanisms all beingoperated directly by the main shaft, and the blank-folding' and seam-bumping mechanisms being operated directly by the auxiliary shaft.

11. In a device of the class described, the combination with the main shaft, the auxiliary shaft, and driving connections between said shafts; of the blank-feeding' mechanism,

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the edge-bending mechanism, the blank-foldingmechamsm, the hook-engaging mechanism, the seam-bumping mechanism, and the stop-gage mechanism; and driving conneci tions between said shafts and mechanisms, the blank -feeding, edgebending and stop -gage mechanisms all being operated directly by the main shaft, and the blank-folding and seambumping mechanisms being operated directly by the auxiliary shaft.

12. In a device of the class described, the combination with the main shaft, the auxiliary shaft, and driving connections between 'said shafts; of the blank-feeding mechanism, the edge-bending mechanism, the blank-folding mechanism, the hook-engaging mechanism, the seam-bumping mechanism and the bodyfeeding mechanism; and driving connections between said shafts and mechanisms,the blankfeeding, edge-bending and body-feeding mechanisms all being operated directly by the main shaft, and the hook-engaging and seam-bumping mechanisms being operated directly by the auxiliary shaft.

13. In a device of the class described, the combination with the main shaft, the auxiliary shaft, and driving connections between said shafts; of the blank-feeding mechanism, the

edge-bending mechanism, the blank-folding.

mechanism, the hook-engaging mechanism, the seam-bumping mechanism and the stopgage mechanism; and driving connections between said shafts and mechanisms, the blank-feeding, edge-bending and stop-gage mechanisms all being operated directly by the main shaft, and the hook-engaging and seam-bumping mechanisms being operatedy directly by the auxiliary shaft.

14. In a device of the class described, the combination with the horn, bumper, and folding-wings cooperating therewith; of the operating-shafts extending transversely thereof directly above and below the horn, blank-feeding mechanism, the blank-clamping and edgebending mechanisms in advance of the horn, operating-levers for the blank-clamping and edge-bending mechanisms pivoted in advance of said shafts and having their ends cooperating with cams thereon, and links pivoted to the centers of said levers and connected to the blank-clamping and edge-bending mechanisms.

15. In a device of the class described, the combination with the horn, bumper andfolding-wings cooperating therewith, of the operating-shafts extending transversely thereof directly above and below the horn, blank-feeding mechanism, the blank-clamping, edgebending and stop-gage mechanisms located in advance of the horn, operating-levers for the-blank-clamping, edge-bending and stopgage mechanisms pivoted in advance of said shafts and having their ends cooperating with ating with cams thereon, links connected with cams thereon, and links connected to the centers of said levers and connected to the blankclamping, edge-bending and stop-gage mechanisms.

1o. In a device of the class described, thc combination with the horn, blank clamp, bumper, and folding-wings all cooperating with said horn, of the operating-shafts extending transversely thereof directly above and below the horn, blank-feedin g mechanism, the cooperating blank-clamping and edge-bending mechanisms in advance of the horn, operating-levers for the blank-clamping and edgebending mechanisms pivoted in advance of said shafts andv having' their ends cooperating with cams thereon, and links pivoted to the centers of said levers and connected to the blank-clamping and edge-bending mechanisms.

17. In a device of the class described, the combination with the horn, and the foldingwings, hook-engaging mechanism and bumper all cooperating with said horn, of the operating-shafts extending transversely thereof directly above and below the horn, blank-feeding mechanism, the blank-clamping and edgebending mechanisms in advance of the horn, operating-levers for the blank-clamping and edge-bending mechanisms pivoted in advance of said shafts and having their ends cooperating' with cams thereon, and links pivoted to the centers of said levers and connected to the blank-clamping and edge-bending mechanisms.

18. In a device of the class described, the combination with the horn, and the blankclamp, folding-wings, hook-engaging mechanism and bumper all cooperating with said horn, of the operating-shafts extending transversely thereof directly above and below the horn, blank-feeding mechanism, the blankclamping and edge-bending mechanisms in advance of'the horn, operating-levers for the blank-clamping and edge-bending mechanisms pivoted in advance of said shafts and having their ends cooperating with cams thereon, and links pivoted to the centers of said levers and connected to the blank-clamping and edgebending mechanisms.

19. In a device of the class described, the combination with the horn, and the bumper and folding-wings cooperating with said horn, of the operating-shafts extending transversely thereof directly above and below the horn, blank-feeding mechanism, the blank-clam ping and edge-bending mechanisms in advance of the horn and consisting of the stationary clamping jaws, movable clamping jaws mounted on transversely swinging levers, edge-bending jaws mounted on longitudinallymovable and transversely-swinging levers, operating-levers for the blank-clamping and edge-bending mechanisms pivoted in advance of said shafts and having their ends cooper- IOC IIS

the operatiiig-levers for swinging' the blankf clamping' and edge-bending' levers, and offsetlevers for moving' the edge-bending' lhpv-levers long'itmlinally.

'2o. ln a device of the class described, the j combination with the upper and lower parallel horizontal shafts, and means 'for driving them in synchronism; of the edge-bending' mechanism` the blank-feeding' mechanism, the blank-folding' wing's, the expanding-lawn and i the bumper; mechanismoperated by thelower shaft 'for actuating' the edge-bending' and sheet-feeding' mechanisms; and mechanism on the upper shaft for operating' the `folding'- wing's, the expanding-horn and the bumper.

'21. ln a device of the class described, the combination with the upper and lower parallel horizontal shafts, and means for driving' them in synchronism, of the edg'e-bending'i mechanism, the blank-feeding' mechanism, the l reciprocating' stop-g'ag'e, the blank-folding'l wings, the expanding-horn, and the bumper; l mechanism operated by the lower shaft for l i l l actuating' the edge-bending' and sheet-'feeding' mechanisms and the reciprocating' stop-gage; and mechanism on the upper shaft for operating' the folding; wing's, the expanding-horn Q and the bumper.

22. In a device of the class described, the combination with the upper and lower pal'- allel horizontal shafts, and means for driving' them in synchronism; of the edge-bending' mechanism, the blank-feeding' mechanism, the blank-folding' mechanism, and the bumper; mechanism operated by the lower shaft for actuating' the edge-bending' and sheet-feeding' mechanisms; and mechanism on the upper shaft for operating' the blank-folding' mechanism and the bumper.

'22%. In a device of the class described, the combination with the upper and lower parallel horizontal shafts, and means for driving' them in synchronism; of the edge-bending' mechanism, the blank-feeding' mechanism, the blank-folding' mechanism, the horn, the bu mping' mechanism, and the reciprocating' stopg'ag'e: mechanism operated by the lower shaft for actuating' the edg'c-bending' and sheet-feeding' mechanisms and the reciprocating' stopg'ag'e: and mechanism on the upper shaft for operating' the blank-'folding' mechanism and the bumper.

'24. ln a device of the class described, the combination with the upper and lower parallel horizontal shafts, and means for driving' them in synchronism; the blank-feeding' mechanism, the blank-folding' mechanism, the horn, the bumper, and edge-bending' mechanisml comprising' the clam ping-jaws, the edg'e-bendi ing' .jaws having' the vertical and horizontal i movements; cams on thc lower shaft and connections therefrom for operating' the sheetl feeding' mechanism and actuating' the clampl ingjaws and g'iving' the edge-bending' iaws l their vertical and horizontal movements in seqnemee; and mechanism on the upper shaft for operating' the blankfolding' iuechanism and the bumper.

In a device of they class described. the combination with the forming-hm'n, of the blank-folding' mechanism and the bumper cooperating' therewith` the horizontal shafts above and below said horn, the blank-feeding' mechanism, the edg'e-bemling' mechanism arranged to operate on the blank in advance of the one operated on by the horn, and the operating-levers for said bending' mechanism fulcrumed in advance of the bending' mechanism and cooperating' with cams on one of said shafts.

26. In a device of the class described, the combination with the forming-horn, of the blank-folding' mechanism and the bumpercooperating therewith, the horizontal shafts above and below said horn, the blank-feeding' mechanism, the edge-bemling' mechanism arranged to operate on the blank in advance of the one operated on by the horn` and the operating-levers for said bending' mechanism fulcrumed in advance of the bending' mechanism and cooperating' with cams mounted on sleeves longitudinally adjustable on said lower shaft.

2T. In a device of the class described, the combination with the framework having' the fixed bearings at one end and parallel rods projecting' from the other end, of the bearings mounted on said rods having' the vertical standards thereon extending' above the top of the wheel, the chain-wheels mounted in said bearing's, the blank-carrying' chain on said wheels, and the blank-holding' plates connecting' ,said standards. 1

Q8. In a device of the class described, the combination with the frame, of the two chainwheels mounted to rotate therein, the blankcarrying' chain connecting' the wheels, the driving-shaft mounted in the frame between the wheels and inside of the chain, and driving' connections between said shaft and one of the wheels vfor imparting' an intermittent forward movement to the wheels and thereby to the chain, said connections consisting of a ratchet on one of the wheels, a swinging' arm carrying' a pawl eng'aging'said ratchet, a face- 'am on the shaft, and a swinging' slotted link connected to said arm and embracing' the shaft and provided with an antifriction-roller eng'ag'ing' the g'roove of the cam.

29. ln a device of the class described, the

lcombination with the horn and the blankfolding' mechanism coi'pcrating' therewith occupying' a relatively lixed position, of the pair of edge-bending' mechanisms, blank-'feeding' mechanism, and means for adjusting' the pair of edge-bending' mechanism simultaneously without destroying' their relative adjustments transversely of the horn to provide for the lOO accurate delivery of the blank therefrom to j' the horn.

3l). In a device of the class described, the combination with the horn and the blankfolding mechanism cooperating therewith occupying a relatively fixed position, of the edgebending mechanism consisting of the right and left halves simultaneously adjustable to and from each other for different-sized blanks, blank-feeding mechanism, and means for adjusting the edge-bending mechanism as a whole without destroying the relative adjustment of its halves transversely of the horn to provide l for the accurate delivery of the blank therefrom to the horn.

31. In a device of the class described, the combination with the horn and the blankfolding mechanism cooperating therewith occupying a relatively fixed position, of the edgebending mechanism consisting of the right and left halves movable to and from each other in ways, blank-feeding mechanism, and means for adjusting the halves of the edgebending mechanism to and from each other for different-sized blanks and for adjusting them simultaneously transversely of the horn to provide for the accurate delivery of the blank therefrom to the horn consisting of av screw shaft having oppositely directed threads engaging the two halves of the edgebending mechanism to move them simultaneously in opposite directions, a collar mounted in the framework in which the screw-shaft rotates and by which it is held from longitudinal movement, and means for adjusting the collar to adjust the bending mechanism as a whole relative to the horn.

32. In a device of the class described, the combination with the horn and the blankfolding mechanism coperating therewith occupying' a relatively fixed position, of the edgebending mechanism consisting of the right and left halves movable to and from each other in ways, blank-feeding mechanism, and means for adjusting thc halves of the edge-bending mechanism to and from each other for different-sized blanks and for adjusting them simultaneously transversely of the horn to provide for the accurate delivery of the blank therefrom to the horn consistingof a screwshaft having oppositely-directed threads engaging the two halves of the edge-bending mechanism to move them simultaneously in opposite directions, an eXteriorly screwthreaded collar screwed into the framework in which the screw-shaft rotates and by which it is held from longitudinal movement, and means for securing the collar in any position in the frame to which it may be screwed.

33. In a device of the class described, the combination with the stationary clampingjaws located toward the center of the machine and the vertical standards located toward the sides thereof, of the movable clamping-jawsupporting levers pivoted in said standards,

the bending-jaw-supporting levers having their outer ends mounted to slide and turn in said standards, and operating mechanism for swinging' the movable clamping-jaw-supporting levers, and for iirst swinging' and subsequently moving longitudinally the bendingjaw-supporting levers.

34. In a device of the class described, the combination with the stationary clampingjaws located toward the center of the machine and the vertical standards located toward the sides thereof having the horizontal channels on their inner sides, of the movable clampingjaw-supporting levers pivoted in said standards, the bending-jaw-supporting levers having antifriction-rollers on their outer ends adapted to roll in said channels, and operating mechanism for swinging the movable clamping-jaw-supporting levers and for first swinging and subsequently moving longitudinally the bending-jaw-supporting levers.

35. In a device of the class described, the combination with the stationary clampingjaws, of the movable clamping-jaw-supporting levers, the movable clamping-jaws vertically adjustable on the ends of said levers, the bending-jaws coperating with said clampingjaws, and means for operating said movable clamping-jaw-supporting levers and bendingjaws at the proper intervals.

36. In a device of the class described, the combination with the stationary clampingjaws, of the movable clamping-jaw-supporting levers having lugs on their inner ends, the movable clamping-jaws vertically adjustable on the ends of said levers by means of setscrews passing through .slots therein and into the levers, set-screws passing' through said lugs on the ends of the levers at right angles to the first-mentioned set-screws and contacting with the upper ends of the jaws, the bendin g-jaws cooperating with said clamping-jaws, and means for operating said movable clamping-jaw-supporting levers and bending-jaws at the proper intervals.

37. 1n a device of the class described, the combination with the stationary clampingjaws, the movable clamping-jaws, the vertically-movable edge-bending jaws,and the plate by which they are supported, of the drivingshaft located beneath said plate; and the operating connections between said shaft and the movablejaws including thelinks 107 connected to the edge-bending' jaws and the eccentric connections between said links and jaws for adjusting the vertical position of the jaws.

38. In a device of the class described, the combination with the stationary clampingjaws, the movable clamping-jaws, the vertically-movable edge-bending jaws, and the plate by which they are supported, of the driving-shaft located beneath said plate; and the operating connections between said shaft and the movable jaws including the links 107 IOO ITO

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